Overview

6 Months Ended

Jun. 30, 2026

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Overview

Note 1. Overview

Hyliion Holdings Corp. is a Delaware corporation headquartered in Cedar Park, Texas, that designs and develops the KARNOTM Power Module for stationary and mobile applications and provides research and development (“R&D”) services. References to the “Company,” “Hyliion,” “we,” “our,” or “us” in this report refer to Hyliion Holdings Corp. and its wholly owned subsidiary, unless expressly indicated or the context otherwise requires.

The KARNO Power Module is a complete, fully integrated, enclosed, fuel agnostic power generating solution, including balance of plant systems such as cooling, controls, fuel, and air handling, that generates electricity on command in stationary power generation applications powered by KARNO Cores. The KARNO Core is a heat-powered generator that uses linear motors in a four-shaft system to generate electricity. Heat is generated through the flameless oxidation of fuels while achieving near zero emissions without aftertreatment systems.